| TYPE | DESCRIPTION |
|---|
| Mounting Style | Surface Mount |
| Frequency | 1 MHz |
| Number of Pins | 8 Pin |
| Supply Voltage (DC) | 7.60V (min) |
| Case/Package | VSSOP-8 |
| Number of Outputs | 1 Output |
| Input Voltage (DC) | 18.0 V |
| Output Voltage | 18 V |
| Output Current | 1 A |
| Supply Current | 3 mA |
| Number of Positions | 8 Position |
| Number of Regulated Outputs | 1 Output |
| Rise Time | 25 ns |
| Switching Frequency | 1000 kHz |
| Thermal Shutdown | No |
| Topology | Boost, Flyback, Forward |
| Duty Cycle | 100 % |
| Maximum Duty Cycle | 96 % |
| Fall Time | 20 ns |
| Operating Temperature (Max) | 105 ℃ |
| Operating Temperature (Min) | -40 ℃ |
| Supply Voltage (Max) | 20 V |
| Supply Voltage (Min) | 7.6 V |
| Input Voltage | 18 V |
| TYPE | DESCRIPTION |
|---|
| Product Lifecycle Status | Active |
| Packaging | Tube |
| Size-Length | 3 mm |
| Size-Width | 3 mm |
| Size-Height | 0.97 mm |
| Operating Temperature | -40℃ ~ 105℃ |
The UCC28C43DGK is a low-power BiCMOS current-mode Pulse Width Modulation (PWM) Controller with pin-for-pin compatibility to the industry standard UC384xA family and UC384x family of PWM controllers. It provides necessary features to control fixed frequency and peak current-mode power supplies. The device offers high-frequency operation up to 1MHz with low start-up and operating currents, thus minimizing start-up loss and low operating power consumption for improved efficiency. It features a very fast current-sense-to-output delay time of 35ns and a ±1A peak output current capability with improved rise and fall times for driving large external MOSFETs directly.
● Fast 35ns Cycle-by-cycle overcurrent limiting
● Rail-to-rail output swings with 25ns rise and 20ns fall times
● ±1% Initial trimmed
● 2.5V Error amplifier reference
● Trimmed oscillator discharge current
● Under-voltage lockout
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